Remove Duplicate Lines
Quickly clean your text by removing any repeated lines.
How to Remove Duplicate Lines
- Paste Your Text: Copy the text or list you want to clean and paste it into the "Input Text" box on the left.
- Choose Case Sensitivity: By default, the tool is case-sensitive (e.g., "Apple" and "apple" are treated as different lines). Uncheck the "Case Sensitive" box if you want them to be treated as the same.
- Click the Button: Press the "Remove Duplicates" button.
- Get Your Clean List: The text with all duplicate lines removed will appear in the "Unique Lines" box on the right. You can then copy this clean list to your clipboard.
About Our Duplicate Line Remover
Working with lists of data, such as email addresses, URLs, or log file entries, often results in unwanted duplicates. Manually finding and deleting these can be incredibly time-consuming and error-prone. Our Duplicate Line Remover automates this process, providing you with a clean, unique list in seconds.
This tool is designed for efficiency, allowing you to choose whether the comparison should be case-sensitive or not. It's an essential utility for data analysts, SEO specialists, developers, and anyone who needs to process lists of text data. As always, your data is processed securely within your browser and is never sent to our servers.
Frequently Asked Questions (FAQ)
What does "Case Sensitive" mean?
Checked (Case-Sensitive): The tool will treat lines with different capitalization as unique. For example, "Hello World" and "hello world" will both be kept in the final list.
Unchecked (Case-Insensitive): The tool will ignore capitalization. "Hello World" and "hello world" would be considered duplicates, and only the first one encountered would be kept.
Does this tool also remove empty lines?
Yes, by default, our tool will remove all empty or blank lines from your text, giving you a compact and clean output. If there are multiple empty lines in the input, they will be treated as duplicates of each other, and only one (if any, depending on the process) would remain before final cleanup.
Will the order of my list be preserved?
Yes, the tool preserves the original order of your list. It keeps the *first* occurrence of each line and removes any subsequent duplicates. So, your unique list will have the same relative order as your input list.